Bottle-stopper



(No Model.) I

A. IBERT Jr, BOTTLE STOPPBR. I

No. 577,139.. Patented Feb. ,16, 1897.

Ililllllllllwllllllfllllllllllln$11 UNITED STATES PATENT OFFICE.

ANTHONY IBERT, JR, OF BROOKLYN, NEYV YORK.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 577,139, dated February 16, 1897.

A li ati n fil d October 31, 1896. Serial No. 610,691. (No model.)

To all whom it may concern:

Be it known that I, ANTHONY IBERT, J r. of Brooklyn, Kings county, New York, have invented an Improved Bottle-Stopper, of which the following is a specification.

This invention relates to that class of bottle-stoppers in which the stopper is permanently secured to the bottle and is opened and closed by a partial rotation.

The object of the invention is to facilitate the manipulation of the stopper, avoid friction, and diminish the wear on the washer.

In the accompanying drawings, Figure 1 is a side view of my improved bottle-stopper. Fig. 2 is a longitudinal section through the same, and Fig. 3 a plan.

The letter A represents a bottle, the head of which is provided with the upright grooves ct and the inclined lower edges a.

The stopper is composed of a cap I), made with two depending hook-shaped arms 1), adapted to engage the grooves a when the bottle is opened and the edges a when the bottle is closed. Within the cap I) there is contained a rigid revoluble disk 0, made, preferably, of aluminium and held against the inner face of the cap by an annular washer d, made of leather, rubber, or similar flexible material. This washer is provided with a groove d, adapted to fit tightly upon the upper edge of bottle A. The disk 0 may be bulged centrally, as at c, to fit into a corresponding central bulge b of cap I), and thusinsure a centering of the disk during the rotation of the cap. The periphery of the cap b, above the arms I), is preferably knurled, as at 6 to ofier a surface by which the cap may be tightly grasped during rotation.

\Vhen the bottle is closed, the hooked arms b engage the lowermost ends of the inclined planes a. To open the bottle, the cap I) 'is revolved until the hooks enter the grooves a, when the stopper can be raised off its seat and swung downward, (dotted lines, Fig. 1.)

The disk 0 and the washer d do not participate in the rotary movement of the cap I), but remain stationary upon the bottle-mouth, so that frictional wear of the washer is prevented. Moreover, as the friction between the disk 0 and cap I) is comparatively small, the stopper may be rotated with considerably less efiort than would be necessary to carry the washer along the bottle edge.

The knurls b constitute a convenient means for rotating the stopper without grasping the arms Z), so that any danger of bending the arms and cap is avoided.

WVhat I claim is-- 1. A bottle-stopper'composed of a cap having a knurled rim, a pair of depending hookshaped arms, a rigid disk contacting with the inner face of the cap, and a flexible washer I below the disk, all being so constructed that the cap is revoluble around the disk and washer, substantially as specified.

2. A bottle-stopper composed of a centrallybulged cap, a pair of depending hook-shaped arms, a centrally-bulged rigid disk engaging the bulged cap, and a flexible washer below the cap, all being so constructed that the cap is revoluble around the disk and washer, substantially as specified.

ANTHONY IBERT, J R. \Vitnesses:

WILLIAM SOHULZ, F. v. BRIEsEN. 

